Timber pocket and plate.



'W. E. TRIPP.

TIMBER POCKET AND PLATE.

APPLIOATION FILED MAY 6, 1912.

SHEET 1 INVENTOR ATTORNEY Patented Oct 7 2 SHEETS W. E. TRIPP.

TIMBER POCKET AND PLATE.

APPLIUATION FILED MAY 6, 1912.

2 SHEETSSHEBT 2 Patented Oct. '7

DH 0 T N E V W UNITED SATS PATENT @FFFCE.

WILLIAM E. TRIPP, OF NEW IBEDFORD, 1VIA$SACHUSETTS.

TIMBER POCKET AND PLATE.

menses.

Application filed May 6, 1912.

T 0 all whom it may concern Be it known that I, lVILLIAM E. TRIPP, of New Bedford, in the county of Bristol and State of Massachusetts, have invented an Improvement in Timber Pockets and Plates, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts.

The object of this invention is to provide a timber pocket of simple and substantial construction which can be easily installed in a wall adding strength thereto, into which beams of wood or metal can be inserted during construction or afterward, which will securely lock said beams into the wall, and allow said beams to fall clear in case the building shall be destroyed, and which allows air space around the ends of the beams. Said timber pocket and plate is also anchored through the walls and, in connection with the beam-lock in the pocket, serves to tie the building together from outside to outside.

In the accompanying drawings, two sorts of timber pockets are shown, one adapted for wooden beams, the other, for steel beams.

Figure 1 is a vertical section of my improved timber pocket, used with a wooden beam. Fig. 2 is a vertical section of my timber pocket for wooden beams, taken longitudinally with the wall. Fig. 3 is a vertical section of my timber pocket for steel beams, taken longitudinally with the wall. Fig. i is a top view of the plate for use with wooden beams. Fig. 5 is a vertical crosssection of my timber pocket for use with steel beams. Fig. 6 is a top view of the plate for use with steel beams.

My timber pocket consists of 3 pieces, preferably of cast-iron, viz :-the plate or base B, and the side-plates A A. The plate B is adapted to be laid in wall as shown in Fig. 1. It has the down-turned apron or flange 6 adapted to engage the inner side of the wall, and the anchor-bolt lug b on its back edge, having the bolt-hole b The side-flanges b are set into the wall and assist in holding the pocket in place. The upper surface of the plate is provided with beads or footings b and with the anchor bead Z2 The beads or footings, b, b serve to retain the lower edges of the side members A A in proper position against the lateral pressure of the arches and brick in the wall. The anchor-bead b engages a corre- Specification of Letters Patent.

Patented (Dot. 7, 1913.

Serial No. 695,552.

spending rabb-et cut in the lower side of the wooden beam D, and serves to anchor or retain said beam in the pocket. The anchorbolt C engages the hole in the anchor-bolt lug b and projects through the outside of the wall where it is fastened by a nut and washer. This anchor-bolt, in connection with the timber pocket lock furnished by the. anchor bead 6 serves to lock or fasten the outside walls of the building securely together.

The side plates A A are L-shaped and are provided with the up-turned flanges a a. The lower edges of said side plates are adapted to engage the top of the plate B, and to rest against the outside of the footing beads b b, which being cast integral. with the plate B serve to retain the side plates in position. The apron b prevents the plate from working back into the wall during construction, and in connection with the lock 6 and the anchor-bolt C, gives additional strength to the wall.

The side plates A A are of peculiar shape, having near the top the inset a and the vertical face a The front of the timber pocket (4 is flush with the inside of the wall. The inset a comes just below the top of the floor beams, enough below to allow for shrinkage of the beam after placing in position. It is customary to set back the inner side of outer walls at each story. The face a is flush with the inner face of the setback wall. There is sufficient clearance between the top of the timber pocket and the top of the inner end of the beam to allow the beam to tip out and fall clear as shown in Fig. 1, without the necessity of fire-cutting or sloping the end of the beam. The floor cl is laid on top of the beam, the inner edge thereof butting against the set-back wall, and the side plates at a This construction, it will be observed, allows an air space all around the end of the beam, allows the beam to be inserted at any stage in the progress of the work, and allows the beam to fall clear of the wall in case the building shall be destroyed by fire.

plate used with wooden beams. In using steel beams it is necessary, on account of the narrower bearing of the beam, to provide heavier plates or bearings in the wall. To this end the plate, instead of being provided with footing beads, like 5 and with an anchor bead like 6 is thickened at the center. The outer edges of the thickened portion make the rabbet or footing Z), to retain the lower edgesof the side plates A A. The locking device is also somewhatdifl'erent in the case of steel beams. The plate for use with steel beams has a longitudinal opening K. The flange of the beam is drilled and a lock-bolt M passed through this hole into the slot K :and locks the beam to the The anchor-bolts C and the apron b in connection with this beam lock and the beam, serve to lock the outer walls of the building together as in the case of the wooden beams. Q11 the top of the steel beam E is fastened the wooden floor piece F on which the floor is laid. It will be observed that the beam can be inserted in this timber pocketeither during or after construction, and that in case of a fire, the clearance between the inner end of the beam H and the top or" the timber pocket is sufficient, in connection with the'shape of the timber pocket, to allow the beam to fall clear of the wall. The pocket for use with steel beams, which are filled in with mortar 0r brick work between the pocket and the beam, is flared slightly toward the top in order to allow the filling ocket.

to come free of the pocket when the beam falls;

The ordinary form of timber pocket is a source of weakness in the wall, especially where, as is frequently the ease in mill construction, there are many arched windows which come between the mountings of the beams in the walls. The side plates and the beads or footings in my timber pocket, take up the lateral thrust of the arches and strengthen the wall, while at the same time providing clearance around the end of the timbers or beams, which is usually prescribed.

Having thus described my said invention,

Ielaim':

The combination in a timber pocket, of a plate adapted to be set into awall, having a longitudinal slot adapted to engage a lockpin, on its rear edge a projecting lug adapted to engage an anchor-bolt, on its front edge a downturned apron adapted to engage the inner side of the wall, and having two beads to form footings for the side members of the pocket and two L-shaped side members, out back near the top on the inside and adapted to engage said plate and beads and form a rectangular box,

Dated this twelfth aayof April, 1912;

WM. E. TRIPP.

WVitnessesi PHILIP H. COOK, HOLDER D. CRAPO.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. CL 

